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https://issues.apache.org/jira/browse/FLINK-7223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106325#comment-16106325
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Bowen Li commented on FLINK-7223:
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What do you guys think 3min or 1min?
I strongly believe that this default value should be the most practical one so
it won't cause much trouble to users, rather than the theoretically shortest
one but rarely works in practice
> Increase DEFAULT_SHARD_DISCOVERY_INTERVAL_MILLIS for Flink-kinesis-connector
> ----------------------------------------------------------------------------
>
> Key: FLINK-7223
> URL: https://issues.apache.org/jira/browse/FLINK-7223
> Project: Flink
> Issue Type: Improvement
> Components: Kinesis Connector
> Affects Versions: 1.3.0
> Reporter: Bowen Li
> Assignee: Bowen Li
> Priority: Minor
> Fix For: 1.4.0
>
>
> Background: {{DEFAULT_SHARD_DISCOVERY_INTERVAL_MILLIS}} in
> {{org.apache.flink.streaming.connectors.kinesis.config.ConsumerConfigConstants}}
> is the default value for Flink to call Kinesis's {{describeStream()}} API.
> Problem: Right now, its value is 10,000millis (10sec), which is too short. We
> ran into problems that Flink-kinesis-connector's call of {{describeStream()}}
> exceeds Kinesis rate limit, and broken Flink taskmanager.
> According to
> http://docs.aws.amazon.com/kinesis/latest/APIReference/API_DescribeStream.html,
>
> "This operation has a limit of 10 transactions per second per account.". What
> it means is that the 10transaction/account is a limit on a single
> organization's AWS account......:( We contacted AWS Support, and confirmed
> this. If you have more applications (either other Flink apps or non-Flink
> apps) competing aggressively with your Flink app on this API, your Flink app
> breaks.
> I propose increasing the value DEFAULT_SHARD_DISCOVERY_INTERVAL_MILLIS from
> 10,000millis(10sec) to preferably 300,000 (5min). Or at least 60,000 (1min)
> if anyone has a solid reason arguing that 5min is too long,
> This is also related to https://issues.apache.org/jira/browse/FLINK-6365
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